sounds
plants
animals
land and water
energy
100
G. Blowing harder into the trumpet
100
J. threatened
100
A. its shell pattern
100
D. a pond
100
C. Grill
200
G Tap each bottle with a metal spoon using the same force.
200
G. water
200
D. grasshoppers
200
D. a waterfall
200
A. a girl's body
300
D. A mouse squeaking
300
J. roots
300
J. rocks
300
B. canyon
300
A. metal fork
400
F. the pitch increases
400
B. the crayfish will compete for food
400
H. microwave
500
A. push different keys
500
F. extinct